body {
  background-color: #383838;
}
.message-box {
}
.message-box .bg {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;

  background-color: white;
  opacity: 0.6;
}

.message-box .card {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  min-width: 450px;
  min-height: 150px;

  background-color: white;
  border-radius: 10px;
  padding: 10px;
}

.message-box .card header {
  min-height: 30px;
  display: flex;
  justify-content: space-between;
}
.message-box .card footer {
  position: fixed;
  bottom: 0;
  min-height: 30px;
  left: 0;
  right: 0;
  display: flex;
  justify-content: flex-end;
  padding: 10px;
}
